Answer:
B. Manning
Explanation:
The Manning formula is an empirical formula for velocity estimation of a liquid flowing in a open channel, only used for water. The Manning formula is:
[tex]V = \frac{k}{n} \cdot R_{h}^{2/3}\cdot S^{1/2}[/tex]
Where:
[tex]V[/tex] - Cross sectional average velocity, measured in meters per second.
[tex]k[/tex] - Conversion factor, dimensionless. ([tex]k = 1[/tex] for SI units)
[tex]n[/tex] - Gauckler-Manning constant, measured in [tex]\frac{s}{m^{1/3}}[/tex].
[tex]R_{h}[/tex] - Hydraulic radius, measured in meters.
[tex]S[/tex] - Slope of the hydraulic grade line, dimensionless.
Both Darcy-Weisbach and Hazen-Williams formulas are used only for fluid flowing in pipes.
In a nutshell, the correct answer is B.
